Porsche Cayman R: Comparison against Audi TT RS and BMW 1M

Interesting buying comparison here of the Porsche Cayman R against the Audi TT RS and the BMW 1M.

The new genre of “lower-case halo cars” — specifically the Porsche Cayman R, BMW 1M and Audi TT RS — are pricey, but they’ve got their priorities in the right place, with nimble handling, supercar acceleration and manual transmission only. The question is, which one would you buy?